Most people hear “military planning” and picture a room full of tired faces, stale coffee, and PowerPoint decks that haven’t seen daylight since Windows XP. But Onebrief? They didn’t just build a better workflow, they built a war fighting operating system.
And the DoD’s buying what they’re selling.
Yesterday, the Honolulu-based defense tech startup locked in a $20M Series C extension, led by Battery Ventures, boosting their valuation to $1.1B, nearly double what it was three months ago. That’s not hype. That’s momentum strapped to a JADC2 compliant rocket.
Big congrats to Grant Demaree, CEO and West Point grad who went from joint task forces in Liberia and Iraq to co-founding Onebrief after sketching early designs in the sandbox of SOJTF-OIR. And to Rafa Pereira, now Head of Product, who left VP roles at IAC and data.world to co-engineer this beast into existence.
This raise brings their total funding to $123M, with prior backing from General Catalyst, Insight Partners, Human Capital, and Y Combinator. Onebrief didn’t slide in with another SaaS-for-gov clone. They earned their stripes by building a platform that U.S. Combatant Commands now rely on for three of the four largest operational plans on Earth.
In a world where planning can’t wait for email threads and whiteboards, Onebrief’s collaborative engine operates live across SIPR, NIPR, JWICS, CENTRIX, and lets staff double their efficiency while cutting decision cycles in half. No extra training. No middlemen. Just operational clarity, synced in real time, auditable, and encrypted to the bone.
From 11 employees to over 100 in two years. A 5,700% increase in operational usage in one quarter. Four out of seven geographic combatant commands already onboard. These aren’t vanity metrics. This is a doctrine shift.
They’re not done. New exec hires like Adam Lackey (COO), David Wolf (VP Eng), and Molly Wilkinson (Head of Gov Relations) show they’re scaling with purpose. With advisors like LTG H.R. McMaster and Chris C. Miller now on board, the message is loud and clear: Onebrief is becoming part of the permanent planning infrastructure for modern warfare.
So what’s the playbook here? Build for users who don’t have time for friction. Solve real pain with tech that works under pressure. And when your platform makes decisions faster, cleaner, and globally interoperable? The world takes notice.
The U.S. Pentagon already has.
